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Spearco Tested
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09-24-2007, 08:51 AM | #111 | |
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Doesn't the intercooler make a cooler = denser air (more oxygen) that goes into the intake manifold which , when burned makes more power which in turn makes the engine generate more heat? A poor intercooler wouldn't necessarily make the car run hotter it would just limit the power it can generate by pulling timing, lowering the boost when it detects detonation. A good intercooler allows the car to run higher (non-detonating) boost. Basically your engine will generate more power and thus more heat because it's using that nice cool air. In other words, we should be looking at getting a better cooling system for our cars, yes intercoolers are nice but in the end, I think you will be aggravating the overheating issues. Last edited by Dr_Dirt; 09-24-2007 at 09:25 AM.. |
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09-24-2007, 09:18 AM | #112 | |
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A high flow cat removed my need for LBT but also SPED up the spool. Correct me if I'm wrong, but isn't the Spearco piece that you sell a little deeper than stock? |
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09-24-2007, 09:33 AM | #113 |
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Well, yeah, maybe it's a wrong way to look at it, what does not necessarily mean either statement is wrong. So let's do the math, just a really easy one:
Generating a certain power output (let's call the amount of it HP) in an internal combustion gasoline turbocharged engine needs a specific amount of gasoline (G) and a specific amount or volume of oxygen (O) present in a specific amount of air pumped in the engine by turbochargers throug an intercooler I under certain pressure P. Lets suffix everything OEM 1 and aftermarket 2. Now let's count with one specific map in the ECU, one specific HP, what means G and O are constant. What varies this time is that pressure P. Lets say the OEM intercooler I1 has lower efficiency, aftermarket intercooler I2 has it higher, what results in cooler air entering the engine. But the amount of oxygen O is constant, so if we have intake temperature T1>T2, we will also have air pressure P1>P2, while the O and HP will be still the same. But with higher P1 the efficiency of the engine is lower, as U consume more energy to press the air inside the valve. That more energy results in more heat. So with I2 U are gonna have lower T2 = lower P2 = lower engine heat while maintaining the same output. Clearer now? PS: this way U can generate more power with I2 assuming P=const, T1>T2 -- G1<G2 -- HP1<HP2, U can put more gas and burn it inside the cylinder, but this needs some support on the ECU side, w/o it the gains U see are the result of some preset tolerance in the ECU.
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09-24-2007, 01:23 PM | #114 |
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higher pressure or coolr air = more oxygen, dont know how you came to the conclusion oxygen is a constant when those are changing, i dont really know what your talking about though or trying to prove as i just skimmed your post lol, but that parts def thumbsdown
also in the case of cooler air or more pressure, fuel would not be constant either as more would be injected |
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09-24-2007, 01:29 PM | #115 | |
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actually youve totally gone off the track, one big way your engine heats up (edit: in this context!) is from pulled timings, less advance = higher EGTs which will heat the turbos up, which will heat the oil and coolant i would be willing to bet the car fitted with a really shitty intercooler making less power at the same boost would run hotter than the car with a much better intercooler making more power that said, the stock intercooler is NOT shitty, and the aftermarket ones are not that much better so no a better intercooler is not going to heat the engine up do to more oxygen and fuel being combusted Last edited by 533ogetnom; 09-24-2007 at 02:09 PM.. |
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09-24-2007, 01:51 PM | #116 |
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Montego, if U're too lazy to think or U have no hardware to do it, just go f*ck yourself and dont hijack all the threads with your BS.
For the rest of U who do care to know - As I mentioned - it's a REALLY REALLY SIMPLIFIED explanation of what's going on in the engine and maybe why get's the engine cooler with better IC. It was demonstrated by plenty of users, confirmed by multiple manufacturers, proven mathematically or whatever, but there's simply not enuff for the most-f*cking-inteligent bimmer user on the world, right, 533ogetnom? PS: Admins, moderators, PLS PLS exchange Terry for this piece of azz. I choose the lesser evil...
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09-24-2007, 01:58 PM | #117 | |
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i just corrected your error in logic thinking that oxygen remained constant when temperature changed edit: since you gave me shit for no reason, i actually bothered to read your post rather than skim it, and its the same completely deluded stuff as always your basically saying that since the stock cooler is hotter, more pressure is required to get the same amount of air into the cylinders and make the same power, and that because of this the engine is less effecient, thus making it hotter true in theory (sort of, not even completely), not in practice when you have many other forces governing engine temperature at MUCH MUCH MUCH higher thermal amounts like timing i dont really care, and i hope most people dont put much weight in the few people that claim lower temps with absolutely no data to back it up, just like i would hope no one puts much faith in butt dynos finally im not exactly sure how im hijacking this thread, when its about the spearco intercooler and its performance (or lack there of) |
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09-24-2007, 03:26 PM | #118 | |
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09-24-2007, 03:44 PM | #119 |
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yea it does, but what im trying to tell you is it will run hotter even with less power if the timings are way back, and the extra heat generated is nothing compared to that, i know it doesnt make sense since one is making more heat, "how could it be hotter if its making less heat and power" but it is, in simple terms because its being used to drive the wheels rather than being put into the coolant
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09-24-2007, 03:46 PM | #120 | |
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and the speeding uo the turbo spools was an added benifit? ______________________________ 2008 335i cabrio: expecting Nov 7 !! 1968 396 Chevelle SS convertible (rebuilt from the ground up) ’95 540i retired ’94 M3 retired ’81 911 Carerra retired |
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09-25-2007, 12:13 AM | #121 |
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yes, about 2" thicker
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09-25-2007, 01:41 AM | #122 |
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09-25-2007, 03:18 AM | #123 |
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i thought spearco was the brand of a racing seat till now
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